According to the complaint the temp of the sensor was set to 43 degrees celsius and the sensor was placed on the same location for 7 hrs.According to the operator's manual (tcm4/40 om page 6-12) the probe should be relocated after 4 hrs at least.A zero check on the sensor was performed and it passed fine.The temp was stable at 42.9 celsius so it was not an issue with the sensor.Additionally, the field service engineer completed the tcm4 complete alignment, and monitor performance test and everything passed fine.Since no error was identified on the unit or sensor, and it was stated that the sensor was not relocated every 4 hrs as it should be this case is suspected to be caused by a user error.
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